Lesson Test Problem 3
Examine the time card for Jay Wells.
Find the total hours worked on
Wednesday.
EMPLOYEE TIME CARD - Jay Wells
DAY DATE IN OUT IN OUT TOTAL
Mon 1/17 8:30 1:15 2:30 4:15
Tue 1/18 7:30 11:30 12:45 4:15
Wed 1/19 8:15 12:30 1:30 5:30||
Thu 1/20 8:30 1:15 2:30 4:45
Fri 1/21 7:00 12:15 1:30 5:45
TOTAL HOURS
I’m not sure if it is 7 hours and 15 mins or 7 hours and 30 mins

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?